Do you know what to do when the lens points to you? It’s not all about flashing a smile and hoping for the best. And there’s no one who knows that better than celebrities. After mugging it for millions of flash bulbs—including plenty of shots at this year’s New York Fashion Week—they’ve learned a thing or two about looking good in pictures, and they’re sharing their lessons with you. Click ahead to read tips from Nikki Reed, Shailene Woodley, and more, and remember their advice the next time you strike a pose. Say cheese!